(It's a classic algorithm. It's a little difficult to understand. Gradually learn this information, including the following attachments:
MfcMD5Calculator\MfcMD5Calculator\res\MfcMD5Calculator.ico
MfcMD5Calculator\MfcMD5Calculator\res\MfcMD5Calculator.rc2
MfcMD5Calculator\MfcMD5Calculator\AboutDlg.cpp
MfcMD5Calculator\MfcMD5Calculator\AboutDlg.h
MfcMD5Calculator\MfcMD5Calculator\ClassBanCopy.h
MfcMD5Calculator\MfcMD5Calculator\FileNameHelpers.cpp
MfcMD5Calculator\MfcMD5Calculator\FileNameHelpers.h
MfcMD5Calculator\MfcMD5Calculator\HyperLink.cpp
MfcMD5Calculator\MfcMD5Calculator\HyperLink.h
MfcMD5Calculator\MfcMD5Calculator\MD5FileCalculator.cpp
MfcMD5Calculator\MfcMD5Calculator\MD5FileCalculator.h
MfcMD5Calculator\MfcMD5Calculator\MfcMD5Calculator.aps
MfcMD5Calculator\MfcMD5Calculator\MfcMD5Calculator.cpp
MfcMD5Calculator\MfcMD5Calculator\MfcMD5Calculator.h
MfcMD5Calculator\MfcMD5Calculator\MfcMD5Calculator.rc
MfcMD5Calculator\MfcMD5Calculator\MfcMD5Calculator.vcproj
MfcMD5Calculator\MfcMD5Calculator\MfcMD5CalculatorDlg.cpp
MfcMD5Calculator\MfcMD5Calculator\MfcMD5CalculatorDlg.h
MfcMD5Calculator\MfcMD5Calculator\ReadMe.txt
MfcMD5Calculator\MfcMD5Calculator\resource.h
MfcMD5Calculator\MfcMD5Calculator\stdafx.cpp
MfcMD5Calculator\MfcMD5Calculator\stdafx.h
MfcMD5Calculator\MfcMD5Calculator\targetver.h
MfcMD5Calculator\Release\MfcMD5Calculator.exe
MfcMD5Calculator\MfcMD5Calculator.sln
MfcMD5Calculator\MfcMD5Calculator.suo
..... Too many files omitted)